A material buffer automatic feeding device

Abstract

The present invention discloses a material buffer automatic feeding device, comprising: a conveyor belt mechanism; a material dividing mechanism arranged at the end of the conveyor belt mechanism for separating the stacks of pallets continuously conveyed above the conveyor belt mechanism; a material sorting mechanism for neatly stacking the separated stacks of pallets; and a feeding mechanism connected to the material sorting mechanism for conveying neatly stacked stacks of pallets. The above-mentioned material buffer automatic feeding device can realize the continuity of feeding materials such as pallets, and at the same time ensure that the conveyed materials are neatly stacked, which is convenient for robot grasping. It has good versatility for pallets of different sizes, and reduces equipment cost and debugging and operation cost.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, and in particular to an automatic material buffer feeding device. Background Art

[0002] At present, some high-end medicines on the market require the addition of pallets, namely foam bottom pallets and top covers, in the carton due to packaging process requirements. Due to the large volume of the foam bottom pallet and top cover, high-speed production involves the problem of bulk material caching and automatic feeding.

[0003] At present, most companies manually stack materials on the platform. When the materials on the platform are exhausted, they need to manually stop the machine to reload materials. This method will reduce production capacity due to equipment shutdown. Some companies use automatic feeding mechanisms, and materials are cached in special silos. The function of the silos is to store and organize materials. On the one hand, due to the large size of the silos, on the other hand, it is necessary to solve the return or cache of empty silos, which causes the equipment to occupy a lot of space. On the other hand, the number of silos is limited, and the silos need to be replenished in time after they are empty. Even for two similar types of materials, two silos of different specifications need to be customized to limit the position and stack the materials neatly, which increases the cost of the equipment and the difficulty of assembly and debugging.

[0004] Therefore, how to solve the problem of continuous transportation and stacking of materials such as bottom trays or top covers and reduce the cost of equipment has become a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a material cache automatic feeding device, which can realize the continuity of feeding of materials such as pallets, while ensuring that the conveyed materials are neatly stacked for easy robot grasping. It has good versatility for pallets of different sizes, reducing equipment costs and debugging and operating costs.

[0006] To achieve the above object, the present invention provides a material buffer automatic feeding device, comprising:

[0007] Conveyor belt mechanism;

[0008] A material separation mechanism provided at the end of the conveyor belt mechanism and used for separating the stacks of pallets continuously conveyed above the conveyor belt mechanism;

[0009] A material sorting mechanism for neatly stacking the separated pallets;

[0010] A feeding mechanism connected to the material sorting mechanism is used to convey neatly stacked pallet stacks.

[0011] Optionally, the material distribution mechanism includes:

[0012] An end baffle disposed toward the end of the conveyor belt mechanism, and an end limit cylinder connected to the end baffle, wherein the movement direction of the end limit cylinder is the same as the extension direction of the conveyor belt mechanism;

[0013] A material pressing cylinder is arranged above the end of the conveyor belt mechanism, and the material pressing cylinder is arranged vertically;

[0014] When the end limit cylinder extends, it drives the end baffle to stop the first stack of pallets at the end of the conveyor belt mechanism, and the pressing cylinder extends to press the second stack of pallets at the end of the conveyor belt mechanism, and the conveyor belt mechanism stops running.

[0015] Optionally, the material distribution mechanism further comprises a loading support plate for supporting the first stack of support plates stopped by the end baffle plate and a compensation cylinder connected to the loading support plate;

[0016] The compensating cylinder is arranged in parallel with the end limit cylinder, and the stroke of the compensating cylinder and the end limit cylinder are the same;

[0017] The compensating cylinder is used to contract when the end limit cylinder contracts, so as to drive the loading pallet to transport the first stack of pallets to the first preset position.

[0018] Optionally, the material sorting mechanism comprises:

[0019] A limiting plate provided on a first side of the end of the conveyor belt mechanism;

[0020] A tidying cylinder is arranged on the second side of the end of the conveyor belt mechanism, and the movement direction of the tidying cylinder is perpendicular to the extension direction of the conveyor belt mechanism, so as to push the first stack of pallets to fit the limiting plate.

[0021] Optionally, the material sorting mechanism further includes:

[0022] A stacking limiting cylinder arranged in parallel with the arranging cylinder and a limiting member connected to the stacking limiting cylinder;

[0023] The stacking and limiting cylinder is used to drive the limiting member to extend between the first stack of pallet plates and the second stack of pallet plates when the first stack of pallet plates and the second stack of pallet plates are separated.

[0024] Optionally, the loading mechanism includes a loading electric cylinder connected to the loading pallet and the compensation cylinder, and the loading electric cylinder is vertically arranged to drive a first stack of pallets located at a first preset position to move upward for the grasping robot to grasp the pallet.

[0025] Optionally, the feeding electric cylinder is arranged on an electric cylinder fixing frame, and a pushing cylinder is arranged on one side of the top of the electric cylinder fixing frame;

[0026] The pushing cylinder is arranged in parallel with the sorting cylinder to push the pallet at the top of the first stack of pallets at the first preset position to the second preset position.

[0027] Optionally, a buffer cylinder and a buffer support plate connected to the buffer cylinder are provided on the upper part of the electric cylinder fixing frame;

[0028] The buffer cylinder is used to extend and support the remaining stacks of pallets when the number of pallets in the first stack of pallets at the first preset position is less than a preset value, so as to facilitate repeated feeding by the end limit cylinder, the compensation cylinder and the feeding electric cylinder.

[0029] Optionally, the conveyor belt mechanism is a conveyor chain plate arranged alternately, the loading support plate is a fork-shaped support plate, and the gap between adjacent conveyor chain plates is used for the loading support plate to extend into.

[0030] Optionally, it also includes a drive mechanism connected to the conveyor belt mechanism, the end limit cylinder, the pressing cylinder, the compensation cylinder, the feeding electric cylinder, the sorting cylinder, the stacking limit cylinder and a control mechanism for the pushing cylinder.

[0031] Compared with the above-mentioned background technology, the material buffer automatic feeding device provided by the present invention feeds materials through a conveyor belt mechanism, and realizes material buffering by stacking pallet stacks on the conveyor belt mechanism, thereby ensuring the continuity of material transportation. The continuously transported materials are separated by setting a material separation mechanism at the end of the conveyor belt mechanism, and then the pallet stacks are sorted and stacked neatly by a material sorting mechanism, which is convenient for accurately positioning the position of the pallet. The loading mechanism loads the neatly stacked pallet stacks to the material grabbing station, which is convenient for the material grabbing robot to accurately grab the pallet and realize the continuity of production. For pallets of different specifications, there is no need to set up different types of silos. The conveyor belt mechanism can complete the transportation of pallet stacks of any size, and the material sorting mechanism ensures that the pallet stacks are neat, and there is no need to limit the pallet through the silo, which is convenient for the material grabbing robot to grab the pallet, saving equipment costs and operating production costs, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A front view of a material buffer automatic feeding device provided by an embodiment of the present invention;

[0034] Figure 2A top view of a material buffer automatic feeding device provided in an embodiment of the present invention;

[0035] Figure 3 for Figure 1 Schematic diagram of the center material separation mechanism, material sorting mechanism and material loading mechanism;

[0036] Figure 4 for Figure 3 Top view of the .

[0037] in:

[0038] 1- conveyor belt mechanism, 2- end baffle, 3- end limit cylinder, 4- pressing cylinder, 5- feeding pallet, 6- compensating cylinder, 7- limit plate, 8- sorting cylinder, 9- stacking limit cylinder, 10- limit piece, 11- feeding electric cylinder, 12- electric cylinder fixing bracket, 13- pushing cylinder, 14- buffer cylinder, 15- buffer pallet. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] Please refer to Figures 1 to 4 , Figure 1 This is a front view of the material buffer automatic feeding device provided by an embodiment of the present invention. Figure 2 A top view of the material buffer automatic feeding device provided in an embodiment of the present invention, Figure 3 for Figure 1 Schematic diagram of the center material separation mechanism, material sorting mechanism and material feeding mechanism. Figure 4 for Figure 3 Top view of the .

[0042] The material buffer automatic feeding device provided by the present invention comprises a conveyor belt mechanism 1, a material dividing mechanism, a material sorting mechanism and a loading mechanism; the conveyor belt mechanism 1 is used to convey and cache materials, by stacking the pallet stacks into stacks above the conveyor belt mechanism 1, after a stack of pallet stacks is grabbed, the rear pallet stack continues to be conveyed, so that the conveyor belt mechanism 1 not only realizes the material conveying function, but also plays a material buffering function; the material dividing mechanism is used to separate the pallet stacks continuously conveyed above the conveyor belt mechanism 1; since the conveyor belt mechanism 1 is used to replace the material bin, the pallet stack lacks the necessary limit, and the pallet is light in weight, the pallet stack is prone to misalignment during the conveying process, resulting in uneven pallet stacks, which in turn causes the grasping robot to fail to grasp the material and the grasping efficiency is low; for this reason, a material sorting mechanism is specially provided to sort the pallet stacks separated by the material dividing mechanism above the conveyor belt mechanism 1, sort and stack the pallet stacks neatly, and finally the neatly stacked pallet stacks are loaded to the grasping station through the loading mechanism, so as to facilitate the grasping robot to grasp the material and realize the continuity of production. The conveyor belt mechanism 1 is used for material transportation and buffering, which is suitable for pallet materials such as bottom trays and top covers of different sizes and models. At the same time, it cooperates with the material dividing mechanism, material sorting mechanism and loading mechanism to complete the sorting and loading of the pallet stack, ensuring the continuous transportation of pallets and other materials. There is no need to set up silos of different specifications for feeding limit, which reduces the equipment cost.

[0043] The material buffer automatic feeding device provided by the present invention is introduced in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] In a specific embodiment provided by the present invention, the above-mentioned material buffer automatic feeding device includes two parts, a bottom support conveying part and a top cover conveying part. Since the size and structure of the bottom support and the top cover are basically the same, the bottom support conveying part and the top cover conveying part have the same composition, both including the above-mentioned conveying belt mechanism 1, the material dividing mechanism, the material sorting mechanism and the feeding mechanism. The conveying belt mechanisms 1 of the bottom support conveying part and the top cover conveying part are arranged in parallel.

[0045] The conveyor belt mechanism 1 uses conveyor chain plates arranged alternately. The so-called conveyor chain plates refer to a conveyor belt connected in a ring shape by chain plates. The conveyor chain plates are arranged alternately and cooperate with the forked loading pallet 5. The gaps between adjacent conveyor chain plates are used for the forks of the loading pallet 5 to extend into, so as to avoid contact with the conveyor belt. For example, the conveyor belt mechanism 1 uses three parallel and alternately arranged conveyor chain plates, and the loading pallet 5 is set in a double fork shape. The two gaps between the three conveyor chain plates are used for the double forks of the loading pallet 5 to extend into, so as to support the pallet stack. The material distribution mechanism includes an end limit cylinder 3, an end baffle 2 connected to the end limit cylinder 3, and a pressing cylinder 4 arranged above the end of the conveyor belt mechanism 1. The end limit cylinder 3 and the end limit baffle are arranged toward the end of the conveyor belt mechanism 1. The end limit cylinder 3 is used to drive the end baffle 2 to move toward and away from the end of the conveyor belt mechanism 1. The end limit cylinder 3 mentioned here is arranged toward the conveyor belt mechanism 1. The setting direction or telescopic direction of the specific end limit cylinder 3 is the same as the extension direction of the conveyor belt mechanism 1. The pressing cylinder 4 is arranged vertically. When the pressing cylinder 4 is extended, it presses the top of the pallet stack on the conveyor belt mechanism 1, and the conveyor belt mechanism 1 is paused. When the pressing cylinder 4 contracts, the pressure on the pallet stack is released, and the conveyor belt mechanism 1 continues to step toward the limit baffle to convey the pallet stack.

[0046] When the end limit cylinder 3 extends, it drives the limit baffle to extend relative to the conveyor belt mechanism 1, and stops and limits the stack of pallets above the conveyor belt mechanism 1. The limit baffle first contacts the first stack of pallets at the end of the conveyor belt mechanism 1, and at the same time, the pressing cylinder 4 presses the second stack of pallets at the end of the conveyor belt mechanism 1, and the conveyor belt mechanism 1 stops running. The first and second stacks here are relative to the limit baffle and the conveying direction of the conveyor belt mechanism 1. The first stack refers to the stack at the end of the conveying direction of the conveyor belt mechanism 1, that is, the stack closest to the limit baffle, and the second stack refers to the stack adjacent to the first stack. When the first stack of pallets is transported to the end of the conveyor belt mechanism 1, the second stack of pallets is prevented from continuing to be transported by pressing the second stack of pallets through the pressing cylinder 4, thereby realizing the separation of the first and second stacks of pallets.

[0047] The material distribution mechanism also includes a loading pallet 5 for supporting the first stack of pallets stopped by the limit baffle and a compensation cylinder 6 connected to the loading pallet 5; the structure of the loading pallet 5 can refer to the fork setting of a forklift, and the loading pallet 5 can shovel the first stack of pallets from the conveyor belt mechanism 1 and provide support for the first stack of pallets; the compensation cylinder 6 and the end limit cylinder 3 are arranged in parallel, and the stroke of the compensation cylinder 6 is equal to the stroke of the end limit cylinder 3.

[0048] When the end limit cylinder 3 is extended, the limit baffle forms a stop for the first stack of pallets. At this time, the compensation cylinder 6 is in an extended state, and the loading pallet 5 scoops and supports the first stack of pallets of the conveyor belt mechanism 1; then the end limit cylinder 3 retracts back to the initial position. At this time, the compensation cylinder 6 follows the end limit cylinder 3 to retract. Since the strokes of the compensation cylinder 6 and the end limit cylinder 3 are equal, after the compensation cylinder 6 drives the loading pallet 5 to retract, the first stack of pallets is transferred to the first preset position and keeps in contact with the limit baffle, ensuring that one side of the first stack of pallets at the end is aligned in the length direction. Among them, the first preset position is the material grabbing station of the material grabbing robot, which is convenient for the material grabbing robot to move to the material grabbing station to grab pallets from the top of the first stack of pallets from top to bottom one by one.

[0049] The material sorting mechanism includes a limit plate 7 arranged on the first side of the end of the conveyor belt mechanism 1 and a sorting cylinder 8 arranged on the second side of the end of the conveyor belt mechanism 1. The limit plate 7 is arranged on the first side of the end of the conveyor belt mechanism 1 to provide the other side, i.e., the width direction, of the pallet stack. The limit plate 7 can be a limit glass plate or a steel plate. Usually, a glass plate is used to prevent rust from contaminating the pallet. At the same time, the glass plate does not block the line of sight, which is convenient for observing the position of the pallet stack. The movement direction of the sorting cylinder 8, i.e., the telescopic direction, is arranged perpendicular to the extension direction of the conveyor belt. A vertically extending push rod can be connected to the end of the sorting cylinder 8. The length of the push rod is not less than the height of the pallet stack. The bottom end of the push rod is higher than the upper end surface of the conveyor belt mechanism 1 and the distance between the push rod and the upper end surface of the conveyor belt mechanism 1 is less than the thickness of a pallet. The sorting cylinder 8 drives the push rod to move toward the conveyor belt mechanism 1, pushes the first stack of pallets to fit the limit plate 7, and realizes the alignment of the first stack of pallets in the width direction. In other words, by arranging the sorting cylinder 8 and the limit plate 7 on both sides of the first preset position, the first stack of pallets can be neatly stacked in the width direction, which makes it easier for the grasping robot to accurately position and grasp the pallet, avoiding grasping failure or the need to position and grasp again each time, thereby improving production efficiency.

[0050] Furthermore, the material sorting mechanism may also include a stacking limit cylinder 9 arranged in parallel with the sorting cylinder 8 and a limit member 10 connected to the stacking limit cylinder 9, where the limit member 10 is specifically a limit rod, and the stacking limit cylinder 9 is arranged in parallel with the sorting cylinder 8, that is, the telescopic directions of the two are the same, and the stacking limit cylinder 9 is used to drive the limit rod to extend between the first stack of pallets and the second stack of pallets when the pressing cylinder 4 presses the second stack of pallets, so as to further separate the first stack of pallets and the second stack of pallets, and at the same time make the first stack of pallets and the second stack of pallets contact the side of the limit rod, that is, the side of the length direction of the pallet stack flush. Through the limit baffle, the sorting cylinder 8, the limit plate 7, the stacking limit cylinder 9 and the limit rod can realize the alignment of the pallet stack in all directions, so that the material grabbing robot can grab the pallets in sequence.

[0051] The feeding mechanism includes a feeding electric cylinder 11, which is vertically arranged and connected to the feeding pallet 5 and the compensating cylinder 6, and is used to drive the feeding pallet 5 and the compensating cylinder 6 to move up and down. By setting the stepping amount of the single rise of the feeding electric cylinder 11, the stepping amount of the feeding electric cylinder 11 each time is an integer multiple of the thickness of the pallet. The grasping robot grasps the pallet at the same height of the first preset position. Since the feeding pallet 5 is connected to the compensating cylinder 6, if the feeding electric cylinder 11 is to drive the feeding pallet 5 and the compensating cylinder 6 to step up as a whole, it is only necessary to keep the cylinder seats of the feeding electric cylinder 11 and the compensating cylinder 6 connected.

[0052] Furthermore, an electric cylinder fixing frame 12 is provided at the end of the conveyor belt mechanism 1, and a feeding electric cylinder 11 is vertically provided on the electric cylinder fixing frame 12, and is provided on the side of the electric cylinder fixing frame 12 facing the end of the conveyor belt mechanism 1. A pushing cylinder 13 is provided on one side of the top of the electric cylinder fixing frame 12, and the pushing cylinder 13 is provided in parallel with the sorting cylinder 8, that is, it is provided perpendicularly to the extension direction of the conveyor belt mechanism 1, and the pallet on the top of the first stack of pallets located at the first preset position is moved to the second preset position by the pushing cylinder 13. The second preset position here refers to the second material grabbing station for the material grabbing robot to grab the pallet, and the second preset position is fitted with the first preset position, and the distance between the two is equal to the stroke of the pushing cylinder 13 minus the length of the pallet. In other words, the pushing cylinder 13 pushes the pallet at the first preset position to the second preset position by extending, so that the material grabbing robot can grab the pallet from the first preset position and the second preset position at the same time.

[0053] In order to improve the material grabbing efficiency, the gripper of the material grabbing robot can usually grab two or more parallel pallets at a time. By setting the pallets at the first preset position and the second preset position, it is convenient to cooperate with the gripper of the material grabbing robot to improve the material grabbing efficiency. For example, each time the push cylinder 13 telescopes, the two layers of pallets at the top of the first stack of pallets at the first preset position are pushed to the second preset position, and the feeding electric cylinder 11 steps upward by the height of two pallet thicknesses each time. After the pallets at the second preset position are grabbed, the push cylinder 13 moves again to replenish pallets to the second preset position. After the pallets of the first stack of pallets are grabbed, the feeding electric cylinder 11 descends, and the compensation cylinder 6, the end limit cylinder 3, the pressing cylinder 4, the sorting cylinder 8 and the stacking limit cylinder 9 repeat the above actions to transfer and stack the original second stack of pallets to the first preset position, and the feeding electric cylinder 11 drives the second stack of pallets to move up.

[0054] In the process of replacing the pallet stack, if a certain buffering mechanism is not set, it will inevitably cause discontinuity of production and reduce production efficiency. Therefore, the present invention also particularly sets a buffer cylinder 14 and a buffer pallet 15 on the upper part of the electric cylinder fixing frame 12. When the pallet stack at the first preset position is about to be used up (such as the first stack of pallets has two layers left, which can be flexibly set according to needs) and the pallet stack needs to be replaced, the buffer cylinder 14 drives the buffer pallet 15 to extend to carry the remaining pallets of the first stack of pallets, the feeding electric cylinder 11 returns, and the compensation cylinder 6, the end limit cylinder 3, the pressing cylinder 4, the sorting cylinder 8 and the stacking limit cylinder 9 repeat the above actions to achieve stack replacement and material replenishment. The setting of the buffer cylinder 14 and the buffer pallet 15 avoids the interruption of material supply during the stack replacement process and ensures the continuity of production.

[0055] The driving mechanism, end limit cylinder 3, pressing cylinder 4, compensating cylinder 6, feeding electric cylinder 11, sorting cylinder 8, stacking limit cylinder 9 and pushing cylinder 13 of the conveyor belt mechanism 1 can be provided with separate control mechanisms respectively. By setting the time difference between two telescopic or lifting movements in the control mechanism, the coordinated movement between the cylinders or electric cylinders can be realized. A control mechanism that connects and controls all the cylinders and electric cylinders can also be provided to control the coordinated operation of the electric cylinders and cylinders to complete the material transportation. The setting of the control mechanism can refer to the existing technology and adopt a computer or a single-chip microcomputer. By inputting the time interval and sequence of operation, the material buffer automatic feeding device can be controlled to realize continuous and automatic feeding and loading to ensure the continuity of production.

[0056] The function of all the above-mentioned electric cylinders or pneumatic cylinders is to drive a certain part to move a certain stroke. Not only pneumatic cylinders and electric cylinders can be used, but also hydraulic rods or electric push rods can be used as needed, as long as they can complete the reciprocating motion of the corresponding stroke.

[0057] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0058] The above is a detailed introduction to the material buffer automatic feeding device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A material buffer automatic feeding device, characterized in that: include: Conveyor belt mechanism (1); A material separation mechanism is provided at the end of the conveyor belt mechanism (1) and is used to separate the stack of pallets continuously conveyed above the conveyor belt mechanism (1), the material separation mechanism comprising an end baffle (2) arranged toward the end of the conveyor belt mechanism (1), an end limit cylinder (3) connected to the end baffle (2), the movement direction of the end limit cylinder (3) being the same as the extension direction of the conveyor belt mechanism (1); and also comprising a material pressing cylinder (4) above the end of the conveyor belt mechanism (1), the material pressing cylinder (4) being arranged vertically; A material sorting mechanism for neatly stacking separated pallet stacks, the material sorting mechanism comprising a limiting plate (7) arranged on a first side of the end of the conveyor belt mechanism (1), and a sorting cylinder (8) arranged on a second side of the end of the conveyor belt mechanism (1), wherein the movement direction of the sorting cylinder (8) is perpendicular to the extension direction of the conveyor belt mechanism (1) so as to push the first stack of pallets to fit the limiting plate (7), wherein the limiting plate (7) is a limiting glass plate or a steel plate; When the end limit cylinder (3) extends, it drives the end baffle (2) to stop the first stack of pallets at the end of the conveyor belt mechanism (1), and the pressing cylinder (4) extends to press the second stack of pallets at the end of the conveyor belt mechanism (1), and the conveyor belt mechanism (1) stops running; A feeding mechanism connected to the material sorting mechanism and used for conveying neatly stacked pallet stacks; A buffer material storage mechanism comprises a buffer cylinder and a buffer support plate arranged on the upper part of an electric cylinder fixing frame, and the electric cylinder fixing frame is arranged at the end of the conveyor belt mechanism.

2. The material buffer automatic feeding device according to claim 1 is characterized in that: The material distribution mechanism further comprises a loading support plate (5) for supporting a first stack of support plates stopped by the end baffle plate (2) and a compensation cylinder (6) connected to the loading support plate (5); The compensating cylinder (6) is arranged in parallel with the end limit cylinder (3), and the stroke of the compensating cylinder (6) and the end limit cylinder (3) are the same; The compensating cylinder (6) is used to contract when the end limit cylinder (3) contracts, thereby driving the loading pallet (5) to transport the first stack of pallets to the first preset position.

3. The material buffer automatic feeding device according to claim 2 is characterized in that: The material sorting mechanism also includes: A stacking limiting cylinder (9) arranged in parallel with the arranging cylinder (8) and a limiting member (10) connected to the stacking limiting cylinder (9); The stacking and limiting cylinder (9) is used to drive the limiting member (10) to extend between the first stack of pallet plates and the second stack of pallet plates when the first stack of pallet plates and the second stack of pallet plates are separated.

4. The material buffer automatic feeding device according to claim 3 is characterized in that: The loading mechanism comprises a loading electric cylinder (11) connected to the loading pallet (5) and the compensating cylinder (6), wherein the loading electric cylinder (11) is vertically arranged to drive a first stack of pallets located at a first preset position to move upwards for the grasping robot to grasp the pallet.

5. The material buffer automatic feeding device according to claim 4 is characterized in that: The feeding electric cylinder (11) is arranged on an electric cylinder fixing frame (12), and a pushing cylinder (13) is arranged on one side of the top of the electric cylinder fixing frame (12); The pushing cylinder (13) is arranged in parallel with the sorting cylinder (8) to push the pallet at the top of the first stack of pallets at the first preset position to the second preset position.

6. The material buffer automatic feeding device according to claim 5 is characterized in that: A buffer cylinder (14) and a buffer support plate (15) connected to the buffer cylinder (14) are provided on the upper part of the electric cylinder fixing frame (12); The buffer cylinder (14) is used to extend and support the remaining stacks of pallets when the number of pallets in the first stack of pallets at the first preset position is less than a preset value, so as to facilitate repeated material feeding by the end limit cylinder (3), the compensation cylinder (6) and the feeding electric cylinder (11).

7. The material buffer automatic feeding device according to claim 6 is characterized in that: The conveyor belt mechanism (1) is a conveyor chain plate arranged alternately, the loading support plate (5) is a fork-shaped support plate, and the gap between adjacent conveyor chain plates is used for the loading support plate (5) to extend into.

8. The material buffer automatic feeding device according to claim 7 is characterized in that: It also includes a control mechanism connecting the conveyor belt mechanism (1), the end limit cylinder (3), the pressing cylinder (4), the compensation cylinder (6), the feeding electric cylinder (11), the sorting cylinder (8), the stacking limit cylinder (9) and the pushing cylinder (13).

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